What is a Cel Code ?
 

and how do you know you have one. Just curious . Thanx

Re: What is a Cel Code ? (BOOSTINSI)
 

search ....

Basically, if you have your Check Engine Light on, there is a code your ECU is trying to tell you.

https://honda-tech.com/zerothread?id=201835

http://www.jdmfan.com/technical/other/troubleshoot_dtc/

http://jdmfan.com/index.php?information=dtc